Hello, I'm wondering if there is ia document describing which guarantees (if any) PostgreSQL makes about concurrency for various operations? Speaking in general (i.e. IO can handle it, number of CPU cores and client threads is optimal), are fully concurrent operations (independant and non-blocking) possible for: 1) An unindexed table? 2) A table with 1+ ordinary (default btree) indexes? (are there constraints on the structure and number of indexes?) 3) A table with 1+ unique indexes? 4) A table with other objects on it (foreign keys, check constraints, etc.)? -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
